16.1-Inch 5.56Mm Barrel Sub-Assembly – Ht Grade 416 Stainless Steel

Description

Manufacture ID: 55D590A
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
Specifications:
– 16.1?
– Medium Taper Profile
– 416 Stainless Steel
– Bead Blasted Finish
– 1:7 Twist
– 5.56e45 NATO Chamber
– Threaded 1/2-28
– Midlength gas port
– .750? Gas Journal

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